I've created a networking library in C++ which works on Linux, Windows, & MacOS and made the core of it based on C++ coroutines and native asyncio from each of these platforms. Check it out: https://github.com/adityarao2005/WebCraft. It has an official vcpkg port. Here is an example of how to use it https://github.com/adityarao2005/http-server-webcraft.